TWM507331U - Monkey wrench capable of steadily clamping - Google Patents

Description

Adjustable grip wrench

The invention relates to a wrench structure, in particular to a movable wrench which can firmly engage different sizes of nuts or bolts.

According to the prior art, the existing adjustable wrench mainly comprises a handle, a fixed cymbal and a movable cymbal, and the fixed cymbal is integrally formed on the top of the handle, and a rotatable screw is laterally disposed, and the movable cymbal is movably disposed on the grip The top of the handle is adjacent to or away from the fixed jaw, thereby adjusting the distance between the movable jaw and the fixed jaw, and the movable jaw is provided with a rack meshing with the screw at the bottom, so that the user can pass through The screw is rotated to adjust the distance between the movable jaw and the fixed jaw, thereby clamping a fixing member such as a nut or a bolt to perform a locking or loosening operation.

However, the existing adjustable wrench must be applied to different sizes of fixing components by rotating the screw, which not only adjusts the distance between the fixed jaw and the movable jaw, but also increases the time required. Since the movable jaw and the fixed jaw need to be sleeved on the outer circumference of the fixing member, the distance between the two is slightly larger than the size of the fixing member, so that the rotation member often has the movable jaw and the fixed jaw. In the case of slippage, the time required to rotate the fixing member is also increased, so that the existing adjustable wrench has its need for improvement.

In order to solve the problem of the need to adjust the distance and easy to disengage the existing adjustable wrench, the main purpose of the present invention is to provide a movable wrench that can be stably clamped, which mainly pivots the movable cymbal, the fixed cymbal and the handle. Combining, by means of which the movable jaw can pivot with the fixed jaw, clamping different fixing elements, and further positioning at least one clamping surface on the fixed jaw or the movable jaw, so that the movable wrench In the process of rotating the fixing component, the fixing component can be firmly engaged without causing the fixing component to slip, thereby providing a movable wrench that can be stably clamped.

The movable wrench provided by the present invention for solving the above problems is provided with a handle, a fixed jaw and a movable jaw, wherein: the handle is provided with a body and a pushing block, and the pushing block is convex Forming on the top of the body and providing a driving hole, the driving hole penetrating through the middle portion of the pushing block; the fixing jaw is pivotally coupled with the handle and is provided with two pivoting plates, an abutting surface and a The two pivoting plates are disposed at a distance from the bottom of the fixed cymbal, and a mounting slot is formed between the two pivoting plates. The fixing cymbal passes through the mounting slot to make the two pivoting plates straddle The two pivoting plates are respectively provided with a lower pivoting hole and an upper pivoting hole, and the lower pivoting hole penetrates the pivoting plate and is linearly opposite to the lower pivoting hole of the other pivoting plate. The fixing bracket is provided with a lower pivoting member between the two lower pivot holes and the driving hole, and each upper pivoting hole penetrates the pivoting plate and is located above the lower pivoting hole in the two upper pivoting holes An upper pivoting member is disposed, and the abutting surface is combined with one side of the two pivoting plates to be located at one side of the mounting groove, and the abutting portion is convex Forming a fixed dome surface adjacent to the abutting surface; the movable jaw is pivotally coupled to the fixed jaw and abuts against the handle, the movable jaw is provided with a joint portion and a tongue portion, the joint portion is partially The coupling portion is disposed in the interior of the mounting groove and has a connecting surface on the bottom surface thereof. The connecting portion is formed with a coupling hole corresponding to the two upper pivot holes. The upper pivoting member is disposed through the coupling hole, and the combination is Abutting against the fixed raft, the shank is fixed to the top surface of the movable raft and protrudes upwardly from the installation groove; and the inner side or two of the movable wrench facing the two squats The inner side surface is respectively provided with a plurality of continuous laterally arranged engaging teeth, wherein each of the engaging teeth is provided with a convex tapered portion at the top, and a concave concave groove is formed below the tapered portion, so that each The bite groove has a barbed structure.

Further, the arc radius of each arc groove is between 0.25 and 0.8 mm.

Further, the engaging surface of the joint portion has an L-shaped shape, and the joint hole is disposed at an end of the joint portion adjacent to the abutment surface, and the joint portion is provided with an abutment at an outer circumference of the joint hole The contact surface against which the face is facing.

Preferably, the joint portion has an inverted Y shape, and the joint surface of the joint portion has an arc shape that is concave upward, and the joint portion is provided with two bottom ends, and the handle is pushed against a top surface of the block is provided with a driving surface corresponding to the shape of the connecting surface, and the pushing block forms a limiting surface at a bottom portion of the side away from the abutting surface, and the shape of the limiting surface is away from the joint portion The shape of the bottom end of the abutment surface corresponds.

Preferably, the fixing cymbal includes a receiving groove and an elastic member, the receiving groove is formed by the abutting surface concavely toward the crotch portion, and the elastic member is received in the receiving groove and abuts against the engaging portion The joint portion is disposed on a side facing the abutting surface of the fixed jaw, and has a planar contact surface. The contact surface of the joint portion abuts against the elastic member, and the elastic member passes through the contact surface of the movable jaw. The push blocks of the handle are in abutting state.

According to the above technical features, the movable grip wrench of the present invention has at least the following advantages and effects: 1. The present invention is provided with a plurality of inner or outer sides of the fixed jaw or the movable jaw. The manner of engaging the teeth allows the sharp taper of each of the engaging teeth located on one or both of the jaws to be pressed against the outer surface of the bolt, thereby effectively increasing the clamping force of the two jaws, thereby allowing the fixed jaw and This activity steadily holds and rotates the bolt. 2. The present invention is configured such that the movable jaw and the handle are pivotally connected to the fixed jaw, and the interlocking surface of the movable jaw and the pushing block of the handle abut each other and can move relative to each other, so that the handle can drive The movable jaw swings relative to the fixed jaw, enabling the wrench to operate quickly and reciprocally, and is suitable for fixing components of different sizes. 3. The new type of the fixed jaw, the movable jaw and the handle are assembled with each other through a pivotal structure, which is not only easy to operate but also has a simple overall structure, and can reduce the cost required for manufacturing the adjustable wrench.

In order to understand the technical features and practical effects of the present invention in detail, and in accordance with the novel content, the following further describes the preferred embodiment as shown in the following figure:

A first preferred embodiment of the movable gripper of the present invention is shown in FIGS. 1 to 3. The adjustable wrench includes a grip 10, a fixed jaw 20 and a movable jaw 30, wherein:

The handle 10 is provided with a body 11 and a pushing block 12, wherein the body 11 is an elongated handle body whose bottom portion is enlarged and tapered toward the top, and the pushing block 12 is formed by a convex shape. A quadrangular block on the top of the body 11 is provided with an elongated driving hole 121 extending through the middle portion.

The fixed cymbal 20 is pivotally coupled to the handle 10 and is provided with two pivoting plates 21, an abutting surface 22 and a cymbal portion 23, wherein the two pivoting plates 21 are disposed in parallel at the bottom of the fixed cymbal 20 The mounting bracket 20 is formed between the two pivoting plates 21, and the fixing bracket 20 passes through the mounting slot 24 so that the two pivoting plates 21 straddle the two outer portions of the pushing block 12. On the side, further, each pivoting plate 21 is provided with a lower pivot hole 211 and an upper pivot hole 212. The lower pivot hole 211 extends through the pivot plate 21 and the lower pivot hole 211 of the other pivot plate 21 The two opposite pivotal holes 211 are connected to the driving hole 121 of the pushing block 12 via the mounting groove 24 , and the fixing clamp 20 is between the two lower pivot holes 211 and the driving hole 121 . A pivoting member 25 is provided to pivotally connect the fixing jaw 20 to the handle 10.

Each of the upper pivotal holes 212 extends through the pivoting plate 21 and the two upper pivotal holes 212 are opposite to each other and are located above the two lower pivoting holes 211. The fixing cymbal 20 is provided with an upper pivoting member in the two upper pivoting holes 212. Preferably, the lower pivoting member 25 and the upper pivoting member 26 are respectively a rivet, and the abutting surface 22 is combined with one side of the two pivoting plates 21 to be located at the mounting slot 24. The side portion is convexly formed on the top surface of the fixed jaw 20 adjacent to the abutting surface 22.

The movable jaw 30 is pivotally coupled to the fixed jaw 20 and is located above the handle 10. The movable jaw 30 is provided with a joint portion 31 and a flange portion 32. The joint portion 31 is disposed on the movable jaw 30. The lower portion is partially disposed in the mounting groove 24. Preferably, the connecting portion 31 is provided with an L-shaped connecting surface 311 on the bottom surface, and the connecting portion 31 is adjacent to one end of the abutting surface 22 The upper pivoting member 26 extends through the upper pivoting hole 212 of the two pivoting plates 21 and the coupling hole 312 of the joint portion 31 to allow the activity. The cymbal 30 is pivotable relative to the fixed cymbal 20 with the upper pivotal member 26 as an axis, and the joint portion 31 is provided with a curved surface and abutting against the fixed cymbal 20 at the outer periphery of the coupling hole 312. The contact surface 313 against which the face 22 abuts.

The cymbal portion 32 is integrally formed by the top surface of the joint portion 31 and protrudes upwardly from the mounting groove 24 of the fixing cymbal 20. Since the joint portion 31 is pivotable relative to the fixed cymbal 20, the movable raft is made movable. The crotch portion 32 of the 30 can be swung toward or away from the crotch portion 23 of the fixed jaw 20; wherein the contact portion 313 continues to abut against the abutment surface 22 of the fixed jaw 20 during operation, allowing the joint portion The yaw angle of the jaw portion 23 relative to the fixed jaw 20 is limited to a certain range, that is, the distance between the movable jaw 30 and the two jaw portions 32, 23 of the fixed jaw 20 is maintained within a specific range. Further, As shown in FIG. 3 and FIG. 4, the adjustable wrench is provided with a plurality of consecutive laterally aligned engaging teeth 40 on one of the inner side faces or the inner side faces of the two jaw portions 23, 32, wherein each of the engaging teeth 40 is disposed at the top. There is a convex tapered portion 41, and a concave groove 42 is formed in the lower side of the tapered portion 41, so that each of the engaging grooves 40 has a barbed structure, and further, each curved groove The radius of the arc of 42 is between 0.25 and 0.8 mm.

The operation of the first preferred embodiment of the present invention is as shown in FIGS. 2 and 3. First, a bolt 50 is disposed between the fixed jaw 20 and the two jaws 23, 32 of the movable jaw 30, and the user holds And the body 11 of the handle 10 is pulled, so that the pushing block 12 of the handle 10 pivots clockwise with respect to the fixed cymbal 20, and the lower pivoting member 25 abuts against the abutting hole 121. One end of the surface 22, at this time, the pushing block 12 abuts against the side surface and the bottom end of the abutting surface 22, and pushes the linking surface 311 of the joint portion 31 of the movable jaw 30, so that the movable jaw 30 is opposite to the When the fixed jaw 20 pivots counterclockwise, the movable jaw 30 and the two jaws 32, 23 of the fixed jaw 20 clamp the bolt 50 so that the taper of each of the engaging teeth 40 on one or both of the jaws 23, 32 The portion 41 can be pressed against the outer surface of the bolt 50 as shown in Fig. 3 or 4, and the clamping force of the two jaw portions 23, 32 can be increased to firmly clamp and rotate the bolt 50.

When the present invention is intended to perform a reciprocating rotation operation as shown in FIG. 5, the user can grip and pull the body 11 of the handle 10 such that the pushing block 12 of the handle 10 pivots counterclockwise relative to the fixed jaw 20. Since the driving hole 121 is a long hole, the handle 10 can be slightly displaced to the right relative to the fixing cymbal 20, and the end portion of the pushing block 12 away from the abutting surface 22 and the joint portion 31 The abutting point of the interlocking surface 311 is slightly moved upward, and the pushing block 12 slightly slides toward the side and the bottom end of the abutting surface 22 and continues to abut, so that the movable jaw 30 pivots clockwise relative to the fixed jaw 20 And a gap is formed between the crotch portion 32 of the movable jaw 30 and the bolt 50, so that the new type can rotate counterclockwise with respect to the bolt 50 without driving the bolt 50, so that the bolt 50 can be reciprocally rotated until the lock tight.

When the present invention is to be operated on a large-sized bolt 50, as shown in FIG. 6, the user holds and pulls the body 11 of the handle 10 such that the pushing block 12 of the handle 10 is opposed to the fixed jaw 20. Pivoting in a counterclockwise direction, and the lower pivoting member 25 abuts against an end of the driving hole 121 away from the abutting surface 22, the top surface of the pushing block 12 adjacent to the abutting surface 22 and the abutting surface 22 abutting each other, the bottom end of the pushing block 12 away from the abutting surface 22 and the bottom end of the joint portion 31 abut each other, so that the crotch portion 32 of the movable jaw 30 is opposite to the crotch portion 23 of the fixed jaw 20 By opening, the distance between the two jaws 23, 32 can be increased, and a large size bolt 50 or nut can be applied.

With the foregoing technical features, the first preferred embodiment of the present invention is mainly pivotally connected to the fixed jaw 20 by the movable jaw 30 and the handle 10, and the movable jaw 30 and the handle are mainly operated. 10 is partially configured to be received in the mounting groove 24 of the fixed jaw 20 such that the pushing block 12 of the handle 10 is pivoted relative to the fixed jaw 20, and the end of the block 12 is pushed. Or the side surface can abut against the abutting surface 22 of the fixed jaw 20 and the engaging surface 311 of the movable jaw 30, and the contact surface 313 of the joint portion 31 continues to abut against the abutting surface 22 of the fixed jaw 20, The pushing block 12 can drive the movable jaw 30 to pivot relative to the fixed jaw 20.

Further, when the handle 10 is rotated in different directions, the distance between the movable jaw 30 and the two jaw portions 32, 23 of the fixed jaw 20 can be changed, not only for the bolt 50 but also for the reciprocating rotation operation, and The fixed jaw 20, the joint portion 31 of the movable jaw 30 and the abutting position of the pushing block 12 of the grip 10 allow the present invention to be applied to bolts 50 or nuts of different sizes. With the aforementioned compact structure, not only the reciprocating rotation operation of the bolt 50 but also the bolts 50 of different sizes can be applied, and the pressing of the respective engaging teeth 40 can be performed during the rotation to allow the two jaw portions 23, 32. The bolt 50 can be firmly held for rotation.

Further, please refer to FIG. 7 and FIG. 8 , the structural design of the second preferred embodiment of the present invention is substantially similar to the foregoing first preferred embodiment, and the difference is that the fixed cymbal 20A further includes a cavity. 27A and an elastic member 28A, the recess 27A is formed in the fixing bracket 20A by being obliquely recessed from the abutting surface 22A, and the elastic member 28A is received in the recess 27A and abuts against the joint portion 31A. The joint portion 31A is an inverted Y-shaped shape, and the bottom surface thereof is recessed upward to form an arc-shaped interlocking surface 311A. The joint portion 31A is provided with two bottom ends, and preferably, the bottom portion of the joint portion 31A The bottom surface of the end is an arc-shaped flange, and the joint portion 31A is provided with a planar contact surface 313A on a side facing the abutting surface 22A of the fixed weir 20A, and the contact surface 313A and the elastic member 28A are mutually Abutting, the elastic member 28A is in abutting state with the contact portion 313A of the movable jaw 30A and the 12A of the handle 10A. The top surface of the pushing block 12A is provided with a shape corresponding to the engaging surface 311A. Corresponding driving surface 122A, and the pushing block 12A forms a concave surface at a bottom portion away from the abutting surface 22A Shaped stopper surface 123A, 123A of the shape of the stopper surface of the coupling portion 31A of the abutment remote from the bottom surface 22A corresponding to the shape and relative bonded.

The second preferred embodiment of the present invention is operated as shown in FIGS. 7 and 8. The user holds and pulls the handle 10A to pivot the push block 12A clockwise relative to the fixed jaw 20A. The movable jaw 30A is rotated counterclockwise with respect to the fixed jaw 20A, so that the fixed jaw 20A and the movable jaw 30A can firmly hold the bolt 50 for rotation, and the elastic member 28A is continuously pushed open when not in use. The contact surface 313A of the joint portion 31A is such that the movable jaw 30A does not rattle relative to the fixed jaw 20A.

When the reciprocating operation of the bolt 50 is to be performed, please refer to FIG. 9 as shown in FIG. 9. The user pulls the grip 10A so that the pushing block 12A pivots slightly counterclockwise with respect to the fixed jaw 20A, so that the joint portion is pivoted. The contact surface 313A of 31A pushes and compresses the elastic member 28A, and the movable jaw 30A pivots clockwise with respect to the fixed jaw 20A, thereby creating a gap between the crotch portion 32A of the movable jaw 30A and the bolt 50. Therefore, the present invention can rotate counterclockwise with respect to the bolt 50 without driving the bolt 50, and the bolt 50 can be reciprocated until it is completely locked.

In addition, when the large-sized bolt 50 is to be operated, please refer to FIG. 10, and the handle 10A is pivoted to pivot the pushing block 12A counterclockwise with respect to the fixed jaw 20A, so that the joint portion is pivoted. The contact surface 313A of the 31A further pushes and compresses the elastic member 28A, and the movable jaw 30A pivots clockwise relative to the fixed jaw 20A. The limiting surface 123A and the joint portion 31A are away from the bottom end of the abutting surface 22A. Abutting, the crotch portion 32A of the movable cymbal 30A is opened relative to the fixed cymbal 20A and its angle is restricted, thereby increasing the distance between the movable cymbal 30A and the fixed cymbal 20A, and a large-sized bolt 50 or Nuts.

In the second preferred embodiment of the present invention, the joint portion 31A is designed to have an inverted Y shape, and the interlocking surface 311A is designed as a concave arc shape, and the handle 10A is The driving surface 122A and the engaging surface 311A are designed correspondingly, so that a smooth driving abutting relationship is formed between the pushing block 12A and the joint portion 31A, so that the movable wrench can be more smoothly used, and the elastic member 28A continues to push. The contact surface 313A of the joint portion 31A prevents the movable jaw 30A from shaking relative to the fixed jaw 20A, thereby providing an adjustable wrench that is easy to operate, is suitable for bolts of different sizes, and can be stably clamped.

10, 10A‧‧‧ grip
11‧‧‧Ontology
12, 12A‧‧‧ push block
121‧‧‧Drive holes
122A‧‧‧Drive surface
123A‧‧‧ Limiting surface
20, 20A‧‧ ‧ fixed 颚
21‧‧‧ pivot board
22, 22A‧‧‧Abutment
211‧‧‧ lower pivot hole
212‧‧‧Upper pivot hole
23‧‧‧颚
24‧‧‧Installation slot
25‧‧‧ Lower pivot joint
26‧‧‧Upper pivot joint
27A‧‧‧容容
28A‧‧‧Flexible parts
30, 30A‧‧‧ Activities颚
31, 31A‧‧ ‧ Joint Department
311, 311A‧‧‧ linkage surface
312, 312A‧‧‧ bonding holes
313, 313A‧‧‧ contact surface
32, 32A‧‧‧ Department
40, 40A‧‧‧ bite teeth
41‧‧‧spirt
42‧‧‧ arc slot
50‧‧‧ bolt

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an external perspective view of a first preferred embodiment of the present invention. Figure 2 is an exploded perspective view showing the appearance of the first preferred embodiment of the present invention. Figure 3 is a partially enlarged front elevational view of the first preferred embodiment of the present invention. Figure 4 is a partially enlarged front elevational view, partially enlarged, of the first preferred embodiment of the present invention. Fig. 5 is a front elevational view showing the operation of another partial cross section of the first preferred embodiment of the present invention. Figure 6 is a front elevational view showing the operation of still another partial section of the first preferred embodiment of the present invention. Figure 7 is a perspective view showing the appearance of a second preferred embodiment of the present invention. Figure 8 is an exploded perspective view showing the appearance of a second preferred embodiment of the present invention. Figure 9 is a front elevational view showing the operation of a partial cross section of the second preferred embodiment of the present invention. Figure 10 is a front elevational view showing the operation of another partial cross section of the second preferred embodiment of the present invention.

20‧‧‧Fixed

22‧‧‧Abutment

23‧‧‧颚

26‧‧‧Upper pivot joint

31‧‧‧Combination

312‧‧‧Combination hole

313‧‧‧Contact surface

32‧‧‧颚

40‧‧‧Bite teeth

41‧‧‧spirt

42‧‧‧ arc slot

50‧‧‧ bolt

Claims (5)

The utility model relates to a movable wrench which can be stably clamped, which is provided with a handle, a fixed jaw and a movable jaw, wherein: the handle is provided with a body and a pushing block, and the pushing block is convexly formed on the top of the body And a driving hole is inserted through the middle portion of the pushing block; the fixing cymbal is pivotally coupled with the handle and is provided with two pivoting plates, an abutting surface and a shackle, the two pivoting The plate is disposed at a distance from the bottom of the fixed rafter, and a mounting groove is formed between the two pivoting plates. The fixing raft passes through the mounting groove so that the two pivoting plates straddle the two outer portions of the pushing block. The side pivoting plate is provided with a lower pivoting hole and an upper pivoting hole, and the lower pivoting hole penetrates the pivoting plate and is linearly opposite to the lower pivoting hole of the other pivoting plate, and the fixing is adjacent to the two A lower pivoting member is disposed between the lower pivoting hole and the driving hole, and each of the upper pivoting holes penetrates the pivoting plate and is located above the lower pivoting hole, and an upper pivoting member is disposed in the two upper pivoting holes. The abutting surface is combined with one side of the two pivoting plates to be located on one side of the mounting groove, and the crotch portion is convexly formed adjacent to the abutting surface. The movable cymbal is pivotally coupled to the fixed cymbal and is located above the handle, and the movable cymbal is provided with a joint portion and a shank portion, the joint portion is partially accommodated inside the installation groove The bottom surface is provided with a connecting surface, and the connecting portion is provided with a coupling hole corresponding to the two upper pivot holes. The upper pivoting member is disposed through the coupling hole, and the joint portion abuts the fixing jaw. The shank is fixed to the top surface of the movable rafter and protrudes upwardly from the installation groove; and the movable wrench is provided with a plurality of continuous lateral directions on one of the inner side faces or the inner side faces of the two shin portions facing each other Arranging the occlusal teeth, wherein each of the occlusal teeth is provided with a convex tapered portion at the top, and a concave groove is formed below the tapered portion so that each of the engaging grooves is in the shape of a barb structure. The movable wrench according to claim 1 is characterized in that the radius of the arc of each arc groove is between 0.25 and 0.8 mm. The movable wrench of claim 1 or 2, wherein the engaging surface of the joint portion has an L-shaped shape, and the coupling hole is disposed at an end of the joint portion adjacent to the abutting surface, and the The joint portion is provided at a peripheral edge of the joint hole with a contact surface abutting against the abutment surface. The movable wrench according to claim 1 or 2, wherein the joint portion is in an inverted Y shape, and the joint surface of the joint portion is in an arc shape that is concave upward, the combination The bottom portion of the handle is provided with a driving surface corresponding to the shape of the engaging surface, and the pushing block forms a limiting surface at a bottom portion of the side away from the abutting surface. The shape of the limiting surface corresponds to the shape of the bottom end of the joint portion away from the abutting surface. The adjustable wrench according to claim 4, wherein the fixing bracket comprises a receiving groove and an elastic member, the receiving groove is formed by the abutting surface concavely toward the crotch portion, and the elastic member is accommodated The joint portion abuts against the joint portion, and the joint portion is provided with a planar contact surface on a side facing the abutting surface of the fixed jaw, and the contact surface of the joint portion and the elastic member abut each other, The elastic member is in abutting state with the pushing block of the handle via the contact surface of the movable jaw.